Dr. Lawlor's Code, Robots, & Things

August 6, 2015

Alaska90: my huge new 3D printer design

Filed under: 3D Printing, Hardware — Dr. Lawlor @ 12:51 am

I started working on a huge new 3D printer design, the “Alaska90”, back in November 2014, but I got busy with school and stalled out.  This summer I finally got a few spare days and finished up the build, which is working well and printing huge things. Main features:

  • 600mm x 500mm x 600mm build volume (24 inch x 20 inch x 24 inch), to construct models as big as a few feet on each side.  By contrast, a typical printer prints about 200mm (8 inches) on a side.
  • Frame is built from 3/4 inch plywood, and parts are secured using 1/4 inch hex head bolts.  By contrast, a typical printer uses 1/4 inch wood or plastic, and tiny M4 screws.
  • Uses heavy 16mm steel rods, so it’s rigid enough to mill wood with a small dremel tool.
  • Support rods are moved inward, to gauss points, to better support the 24 inch x 24 inch bed.

3D rendering of Alaska90 3D printerPhotograph of Alaska90 3D printer The full design details, STL files, and OpenSCAD source code for the Alaska90 printer is on my github.

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